Air程序存储文件

var file:File = File.desktopDirectory;  
file= file.resolvePath("test.txt");  
var fileStream:FileStream = new FileStream();  
fileStream.openAsync(file, FileMode.WRITE);  
fileStream.writeUTFBytes("Hi this file was saved from AIR application without dialog");  
fileStream.addEventListener(Event.CLOSE, fileClosed);  
fileStream.close();  
  
function fileClosed(event:Event):void {  
	trace("closed event fired");  
}